a talking point from republicans on the jobs front. one thing, you guys. unemployment is the lowest since 2008, so that's something that the white house clearly can point out. also, february and march numbers, the february jobs gain was revised to 332,000. >> that's a huge number. >> a big number. that shows you at the beginning of the year, companies -- private sector companies had to do hiring. they were holding back had to do hiring. march, 138,000. that bad -- >> not nearly as crummy. >> not nearly as crummy as we thought. that is the unemployment rate over the past year. we go back further, the lowest since 2008. not that 2008 wasn't great. that shows improvement there. >> jessica yellin, traveling with the president to mexico city. >>> an update on the boston marathon terror investigation. law enforcement source tells cnn that the 4th of july was the original target date for the attack. 4th of july, not patriots day. the date moved up to april, the iconic boston marathon, because the bombs were ready earlier than expected. we've also learned bombs we